Official Journal of the Japan Wood Research Society
Table 4 Surface tension components of untreated and THM wood from acid–base model
From: Study on the changes in surface characteristics of Populus tomentosa due to thermo-hydro-process
Samples | Surface free energy (mJ/m2) | ||||
|---|---|---|---|---|---|
\(\gamma _{{\text{S}}}^{{{\text{LW}}}}\) | \(\gamma _{{\text{S}}}^{{\text{+}}}\) | \(\gamma _{{\text{S}}}^{ - }\) | \(\gamma _{{\text{S}}}^{{{\text{AB}}}}\) | \(\gamma _{{\text{S}}}^{{\text{T}}}\) | |
Untreated | 38.10 | 6.07 | 19.11 | 21.55 | 59.65 |
CR50 | 34.83 | 6.03 | 19.53 | 21.71 | 56.54 |
CR60 | 31.15 | 4.96 | 13.60 | 16.44 | 47.59 |
CR70 | 27.25 | 4.51 | 13.49 | 15.60 | 42.85 |
CR75 | 14.00 | 0.98 | 10.22 | 6.31 | 20.31 |